Search results for: Zheng Yan

Items from 1 to 20 out of 539 results

article

The implementation of robotic dogs in automatic detection and surveillance of red imported fire ant nests

Xin Su, Guijie Shi, Jiamei Zhong, Yuling Li, more

Pest Management Science > 80 > 10 > 5277 - 5285

BACKGROUND The Red Imported Fire Ant (RIFA), scientifically known as Solenopsis invicta, is a destructive invasive species causing considerable harm to ecosystems and generating substantial economic costs globally. Traditional methods for RIFA nests detection are labor‐intensive and may not be scalable to larger field areas. This study aimed to develop an innovative surveillance system that leverages...

article

An Optimized Grid‐Forming Control Strategy for the Flexible Interconnection System in Distribution Transformer Areas

Gaole Yu, Jianyuan Xu, Zheng Yan, Wenlong Ren

IEEJ Transactions on Electrical and Electronic Engineering > 19 > 8 > 1311 - 1323

The flexible interconnection system (FIS) in distribution transformer areas can improve the local consumption capacity of high penetration rate distributed photovoltaics and solve the problem of the high loading rate of distribution transformers. This paper presents an optimized grid‐forming control strategy for the FIS in distribution transformer areas. First, the DC side impedance small signal model...

article

Bioactivities of scent gland chemicals from Mictis fuscipes Hsiao (Hemiptera: Coreidae) on Solenopsis invicta Buren (Hymenoptera: Formicidae)

Jiamei Zhong, Eduardo G. P. Fox, Siquan Ling, Zheng Yan, more

Pest Management Science > 80 > 6 > 2892 - 2904

BACKGROUND Given the chemical diversity within stink bugs scent glands, they can be convenient models for bioprospecting novel pest control products. Preliminary behaviour observations indicated that adult Mictis fuscipes stink bugs secrete liquid droplets when defending against Solenopsis invicta fire ants, killing them within minutes. Hence, this study aimed to analyse the chemical composition...

article

Oxidized low‐density lipoproteins impair the pro‐atherosclerotic effect of granulocyte‐macrophage‐colony‐stimulating factor‐producing T helper cells on macrophages

Xiaofang Xiong, Zheng Yan, Long Yan, Xuexue Yang, more

Scandinavian Journal of Immunology > 99 > 5 > n/a - n/a

T cells contribute to the pathogenesis of atherosclerosis. However, the presence and function of granulocyte‐macrophage‐colony‐stimulating factor (GM‐CSF)‐producing T helper (ThGM) cells in atherosclerosis development is unknown. This study aims to characterize the phenotype and function of ThGM cells in experimental atherosclerosis. Atherosclerosis was induced by feeding apolipoprotein E knockout...

article

Mung bean protein as an emerging source of plant protein: a review on production methods, functional properties, modifications and its potential applications

Qiqian Feng, Zhitao Niu, Siqi Zhang, Li Wang, more

Journal of the Science of Food and Agriculture > 104 > 5 > 2561 - 2573

Plant protein is rapidly becoming more of a prime interest to consumers for its nutritional and functional properties, as well as the potential to replace animal protein. In the frame of alternative protein new sources, mung bean is becoming another legume crop that could provide high quality plant protein after soybean and pea. In particular, the 8S globulins in mung bean protein have high structural...

article

Comparative pharmacokinetics of 11 major bioactive components between two dosage forms of Qixue Shuangbu Prescription in rats by ultra‐high‐performance liquid chromatography‐tandem mass spectrometry

Yong Jiang, Liu Xu, Nina Wei, Rui Chen, more

Journal of Separation Science > 47 > 1 > n/a - n/a

Although Qixue Shuangbu Prescription (QSP) is a classic Chinese medicine prescription for treating chronic heart failure. Low bioavailability due to the insolubility and poor biofilm permeability of the main bioactive ingredients of QSP is still a key factor limiting its efficacy. In this study, a novel self‐microemulsifying drug delivery system was proposed to effectively improve the bioavailability...

article

Novel WEE2 homozygous mutations c.1346C>T and c.949A>T identified in primary infertile women due to unexplained fertilization failure

Haiyan Guo, Haibo Wu, Zheng Yan, Mingru Yin, more

Clinical Genetics > 104 > 6 > 700 - 704

The occurrence of unexplained fertilization failure can have profound psychological and financial consequences for couples struggling with infertility, and its pathogenesis remains unclear. Increasing evidence highlights genetic basis of unexplained fertilization failure occurrence. Here, we identified one novel homozygous nonsense mutation (c.949A>T), one novel homozygous missense mutation (c...

article

Direct Induction of Porous Graphene from Mechanically Strong and Waterproof Biopaper for On‐Chip Multifunctional Flexible Electronics

Nan Zhao, Hanwen Zhang, Shuhong Yang, Yisheng Sun, more

Small > 19 > 43 > n/a - n/a

Graphene with a 3D porous structure is directly laser‐induced on lignocellulosic biopaper under ambient conditions and is further explored for multifunctional biomass‐based flexible electronics. The mechanically strong, flexible, and waterproof biopaper is fabricated by surface‐functionalizing cellulose with lignin‐based epoxy acrylate (LBEA). This composite biopaper shows as high as a threefold increase...

article

Skin‐Inspired Porous Mesh Bioelectronics with Built‐In Multifunctionality for Concurrently Monitoring Heart Electrical and Mechanical Functions

Yun Ling, Ganggang Zhao, Yajuan Su, Qian Wu, more

Advanced Functional Materials > 33 > 41 > n/a - n/a

Skin exhibits nonlinear mechanics, which is initially soft and stiffens rapidly as being stretched to prevent large deformation‐induced injuries. Developing skin‐interfaced bioelectronics with skin‐inspired nonlinear mechanical behavior, together with multiple other desired features (breathable, antibacterial, and sticky), is desirable yet challenging. Herein, this study reports the design, fabrication,...

article

A sublethal concentration of chitosan oligosaccharide suppresses the population growth of the wheat aphid, Rhopalosiphum padi (Linnaeus)

Hailong Yu, Xinan Li, Chen Lan, Qiuchi Li, more

Journal of Applied Entomology > 147 > 8 > 622 - 629

The bird cherry‐oat aphid Rhopalosiphum padi (L.) (Hemiptera: Aphididae) is a key pest of wheat in China. Chitosan oligosaccharide (COS) has been widely used due to its biocompatibility, antibacterial activity, environmental friendliness and convenient extraction. This study was aimed at determining the acute toxicity of COS on R. padi and transgenerational effects of sublethal concentrations of COS...

article

Synthesis and Cytotoxicity Assessment against Human Colorectal Cancer Cell Lines of Quaternary 8‐Dichloromethyl Protoberberine Alkaloids

Ling‐Wen Xu, Xue‐Qian Zhang, Zheng Yan, Zhi‐Hong Li, more

Chemistry & Biodiversity > 20 > 6 > n/a - n/a

Twenty‐two quaternary 8‐dichloromethylprotoberberine alkaloids were synthesized from unmodified quaternary protoberberine alkaloids (QPAs) to improve their physical and chemical properties and to obtain selectively anticancer derivatives. The synthesized derivatives showed more appropriate octanol/water partition coefficients by up to values 3–4 compared to unmodified QPA substrates. In addition,...

article

Functional and structural alterations of dorsal attention network in preclinical and early‐stage Alzheimer's disease

Huimin Wu, Yu Song, Xinyi Yang, Shanshan Chen, more

CNS Neuroscience & Therapeutics > 29 > 6 > 1512 - 1524

Objectives Subjective cognitive decline (SCD) and amnestic mild cognitive impairment (aMCI) are known as the preclinical and early stage of Alzheimer's disease (AD). The dorsal attention network (DAN) is mainly responsible for the “top‐down” attention process. However, previous studies mainly focused on single functional modality and limited structure. This study aimed to investigate the multimodal...

article

Electrocatalytic Hydrogen Evolution of the Cobalt Triaryl Corroles Bearing Hydroxyl Groups

Zhou‐Yan Lv, Gang Yang, Bao‐Ping Ren, Zheng‐Yan Liu, more

European Journal of Inorganic Chemistry > 26 > 12 > n/a - n/a

Three isomeric A₂B‐type new cobalt triaryl corroles bearing hydroxyphenyl substituents have been prepared and well characterized. Their activity and stability in the electrocatalytic hydrogen evolution reaction (HER) have been investigated. The results showed that the hydroxyl position of the phenyl group had significant influence on electrocatalytic HER. The ortho‐hydroxyphenyl substituted cobalt...

article

Direct Freeform Laser Fabrication of 3D Conformable Electronics

Bujingda Zheng, Ganggang Zhao, Zheng Yan, Yunchao Xie, more

Advanced Functional Materials > 33 > 1 > n/a - n/a

3D conformable electronic devices on freeform surfaces show superior performance to the conventional, planar ones. They represent a trend of future electronics and have witnessed exponential growth in various applications. However, their potential is largely limited by a lack of sophisticated fabrication techniques. To tackle this challenge, a new direct freeform laser (DFL) fabrication method enabled...

article

Effects of sampling rate on multiscale entropy of electroencephalogram time series

Jinlin Zheng, Yan Li, Yawen Zhai, Nan Zhang, more

Biocybernetics and Biomedical Engineering > 2023 > Vol. 43, no. 1 > 233--245

A physiological system encompasses numerous components that function at various time scales. To characterize the scale-dependent feature, the multiscale entropy (MSE) analysis has been proposed to describe the complex processes on multiple time scales. However, MSE analysis uses the relative scale factors to reveal the time-related dynamics, which may cause in-comparability of results from diverse...

article

Involvement of Methoprene‐tolerant and Krüppel homolog 1 in juvenile hormone‐mediated vitellogenesis of female Liposcelis entomophila (End.) (Psocoptera: Liposcelididae)

Bin‐Bin Yang, Shi‐Yuan Miao, Yu‐Jie Lu, Sui‐Sui Wang, more

Archives of Insect Biochemistry and Physiology > 112 > 1 > n/a - n/a

Methoprene‐tolerant (Met) as an intracellular receptor of juvenile hormone (JH) and the Krüppel‐homolog 1 (Kr‐h1) as a JH‐inducible transcription factor had been proved to contribute to insect reproduction. Their functions vary in different insect orders, however, they are not clear in Psocoptera. In this study, LeMet and LeKr‐h1 were identified and their roles in vitellogenesis and ovarian development...

article

Robust Interfacial Modifier for Efficient Perovskite Solar Cells: Reconstruction of Energy Alignment at Buried Interface by Self‐Diffusion of Dopants

Lipeng Wang, Jianxing Xia, Zheng Yan, Peiquan Song, more

Advanced Functional Materials > 32 > 35 > n/a - n/a

The under‐coordinated defects within perovskite and its relevant interfaces always attract and trap the free carriers via the electrostatic force, significantly limiting the charge extraction efficiency and the intrinsic stability of perovskite solar cells (PSCs). Herein, self‐diffusion interfacial doping by using ionic potassium L‐aspartate (PL‐A) is first reported to restrain the carrier trap induced...

article

WeChat‐based remote follow‐up management alleviates the home care burden and anxiety of parents of premature infants: Randomized controlled study

Zheng Yan, Fan Liu, Xiao‐Ping Lin, Jun Chen, more

Child: Care, Health and Development > 48 > 4 > 651 - 657

Objective The purpose of this study was to explore the effect of WeChat‐based remote follow‐up management on reducing the home care burden and anxiety of parents of premature infants. Methods A randomized controlled study was conducted in our hospital, with 150 premature infants enrolled in this study, each with 75 cases in the intervention group and the control group. WeChat‐based remote follow‐up...

article

Immune changes beyond Th2 pathways during rapid multifood immunotherapy enabled with omalizumab

Monali Manohar, Diane Dunham, Sheena Gupta, Zheng Yan, more

Allergy > 76 > 9 > 2809 - 2826

Background Multifood oral immunotherapy (mOIT) with adjunctive anti‐IgE (omalizumab, XOLAIR^®) treatment affords safe, effective, and rapid desensitization to multiple foods, although the specific immune mechanisms mediating this desensitization remain to be fully elucidated. Methods Participants in our phase 2 mOIT trial (NCT02643862) received omalizumab from baseline to week 16 and mOIT from week...

article

Study on the interaction of hyperoside and human serum albumin in V_C and V_C‐free environments by spectroscopic and molecular docking techniques

Xiulan Xin, Liang Chen, Ye Li, Ran Yu, more

Luminescence > 36 > 3 > 595 - 605

The interaction between hyperoside and human serum albumin was studied in vitamin C (V_C) and V_C‐free environments using ultraviolet (UV)–vis absorption, fluorescence, circular dichroism spectra, and molecular docking techniques under simulated physiological conditions. The two environments had different influences on the secondary structure of human serum albumin (HSA). The α‐helix content was slightly...

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INFONA - science communication portal

Search results for: Zheng Yan

The implementation of robotic dogs in automatic detection and surveillance of red imported fire ant nests

An Optimized Grid‐Forming Control Strategy for the Flexible Interconnection System in Distribution Transformer Areas

Bioactivities of scent gland chemicals from Mictis fuscipes Hsiao (Hemiptera: Coreidae) on Solenopsis invicta Buren (Hymenoptera: Formicidae)

Oxidized low‐density lipoproteins impair the pro‐atherosclerotic effect of granulocyte‐macrophage‐colony‐stimulating factor‐producing T helper cells on macrophages

Mung bean protein as an emerging source of plant protein: a review on production methods, functional properties, modifications and its potential applications

Comparative pharmacokinetics of 11 major bioactive components between two dosage forms of Qixue Shuangbu Prescription in rats by ultra‐high‐performance liquid chromatography‐tandem mass spectrometry

Novel WEE2 homozygous mutations c.1346C>T and c.949A>T identified in primary infertile women due to unexplained fertilization failure

Direct Induction of Porous Graphene from Mechanically Strong and Waterproof Biopaper for On‐Chip Multifunctional Flexible Electronics

Skin‐Inspired Porous Mesh Bioelectronics with Built‐In Multifunctionality for Concurrently Monitoring Heart Electrical and Mechanical Functions

A sublethal concentration of chitosan oligosaccharide suppresses the population growth of the wheat aphid, Rhopalosiphum padi (Linnaeus)

Synthesis and Cytotoxicity Assessment against Human Colorectal Cancer Cell Lines of Quaternary 8‐Dichloromethyl Protoberberine Alkaloids

Functional and structural alterations of dorsal attention network in preclinical and early‐stage Alzheimer's disease

Electrocatalytic Hydrogen Evolution of the Cobalt Triaryl Corroles Bearing Hydroxyl Groups

Direct Freeform Laser Fabrication of 3D Conformable Electronics

Effects of sampling rate on multiscale entropy of electroencephalogram time series

Involvement of Methoprene‐tolerant and Krüppel homolog 1 in juvenile hormone‐mediated vitellogenesis of female Liposcelis entomophila (End.) (Psocoptera: Liposcelididae)

Robust Interfacial Modifier for Efficient Perovskite Solar Cells: Reconstruction of Energy Alignment at Buried Interface by Self‐Diffusion of Dopants

WeChat‐based remote follow‐up management alleviates the home care burden and anxiety of parents of premature infants: Randomized controlled study

Immune changes beyond Th2 pathways during rapid multifood immunotherapy enabled with omalizumab

Study on the interaction of hyperoside and human serum albumin in V_C and V_C‐free environments by spectroscopic and molecular docking techniques

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